"Firefox also includes the necessary libraries, so if you have a binary package of Gaim that was built with SSL support you may be able to add /usr/lib/firefox to /etc/ld.so.conf and run ldconfig as root."

But I don't know how to add /usr/lib/firefox to /etc/ld.so.conf and run ldconfig.

Any help is appreciated.
btw. GAIM version 1.4.0 and FireFox version 1.0.6 and using XFCE.